Item: tanm189x
From 2 grams to 5 grams each (10-25 carats each - see below)
Small tanzanite crystal pieces from 1/2 inch to 3/4 inch long (see sizes below)
These genuine tanzanites were mined in Tanzania
These small size tanzanite mineral specimens were mined in the Merelani Hills of Tanzania. They are translucent to semi-transparent tanzanite crystal pieces with light to medium blue-violet color. Please see below to order.

Item: tanm185
69.5 carats (13.9 grams)
1.1" long x 0.9"x 0.7"
Mined in TanzaniaPrice:$84.50
This natural tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal that is translucent to semi-transparent with a small amount of graphite on one side.

Item: tanm187
197.5 carats (39.5 grams)
2.0" long x 1.3"x 0.9"
Mined in TanzaniaPrice:$164.50
This natural tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal with translucent to semi-transparent areas and some pyrite on one side. See also a view showing the pyrite.

Item: tanm171
This natural specimen weighs 182.1 carats (36.42 grams)
1.7" long x 0.9"x 0.9"
Mined in TanzaniaPrice:$161.50
This natural tanzanite specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal section with translucent to semi-transparent areas and a small amount of graphite matrix on some surfaces. See also a back-view photo.

Item: tanm151
220.1 carats (44.02 grams)
1.4" long x 1.3"x 1.2"
Mined in TanzaniaPrice:$164.50
This natural tanzanite specimen (tanzanite is a variety of the mineral zoisite) was mined in the Merelani Hills of Tanzania. This tanzanite crystal section has mostly broken surfaces with some naturally terminated areas, and it is translucent to semi-transparent.

Item: tanm188
1941 carats (388.2 grams)
3.5" long x 3.4"x 1.7"
Mined in TanzaniaPrice:$1164.50 This natural tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal with translucent to semi-transparent areas. See also a back-view photo and a close-up photo, and another-view .

Item: tanm157
Genuine Tanzanite Crystal weighs 72.2 carats (14.44 grams)
1.5" long x 0.8"x 0.5"
Mined in TanzaniaPrice:$577.60 This naturally terminated tanzanite crystal was mined in the Merelani Hills of Tanzania. It is mostly translucent to semi-transparent with small gem-grade areas at its tip. The prismatic faces are in mostly good conditon with some broken areas, and the terminations are in very good condition with vitreous luster. This naturally terminated tanzanite crystal was carefully heated and it has a very rich purple color in one direction and rich blue color perpendicular to the purple. See also a standing-view photo, opposite side photo, side-view photo, and a another side-view photo.

Item: tanm140
This natural zoisite crystal weighs 22.2 carats
37.5mm x 11mm x 9mm
Mined in AfghanistanPrice:$198.80 This natural color (Zoisite) crystal was stated by our supplier to have been mined in the Nangarhar Provence of Afghanistan. It is transparent throughout with nearly all being gem-grade. Its prismatic faces and the terminations have vitreous luster, are in very good condition, and the crystal is doubly terminated. This natural color tanzanite crystal has weak dichroism with a very light greenish blue gray color in one direction and a light pinkish gray when viewed from the front as shown in the photo at left which was taken under a mixture of incandescent and flourescent light. The morphology of this crystal is very nice.(A rare colectors item)

Item: tanm141
This natural zoisite crystal weighs 31.28 carats
40mm x 15mm x 7.7mm
Mined in AfghanistanPrice:$257.60 This natural color (Zoisite) crystal was stated by our supplier to have been mined in the Nangarhar Provence of Afghanistan. It actually is two crystals that are inter-grown and they are also doubly terminated. They grade from semi transparent at the base to completely transparent gem-grade at their teminations. Its prismatic faces and the terminations have vitreous luster, are in very good condition. This natural color tanzanite crystal has weak dichroism with a very light greenish blue gray color in one direction and a light pinkish gray when viewed from the front as shown in the photo at left which was taken under a mixture of incandescent and flourescent light.(see a back-view photo). The morphology of this crystal is very nice.(A rare colectors item)

Item: tanm162
Natural tanzanite crystal weighs 9.58 carats
17mm long x 10mm x 7mm
Mined in TanzaniaPrice:$153.28
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This moderately included tanzanite crystal would be considered cab grade only. The prismatic faces and the terminations are in fair condition with good luster. The faces are partialy abraided as well as the tip. See also opposite side view photo.

Item: tanm163
Genuine tanzanite crystal weighs 11.69 carats
20.5mm long x9.5mm x 7mm
Mined in TanzaniaPrice:$245.50
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This lightly included tanzanite crystal would be considered cuttable, with a good sized clean area. The prismatic faces and the terminations are some what striated and abraided but with good clarity and luster. See also side view photo.

Item: tanm173
This natural tanzanite weighs 530.9 carats (106+ grams)
Tanzanite measurements: 2.25" long x 1.75"x 1.10"
Mined in Tanzania, Merilani Block "D"Price:$1643.00
This large natural tanzanite specimen weighs over 530 carats. It was mined in the Merelani Hills of Tanzania (Block "D"). This large tanzanite specimen is mostly translucent to semi-transparent. It has a beautiful intergrown crystal that has grown from its base that measures approximately 1-1/4"L x 5/8" x 3/8" tapering from mid-way to a chisel like termination. The upper portion of this is gem quality, mostly clean and very transparent. This is a stand alone specimen and the termination of the main crystal is capped with a layer of silvery black graphite, offering a nice contrast. See also another view photo See also another view photo

Item: tanm174
Natural Tanzanite Specimen weighs 467.5carats (93.5 grams)
This genuine tanzanite dimensions is: 3.5" long x 1.25"x .55"
Mined in Tanzania, Merilani Block "D"Price:$1963.50
This large natural tanzanite specimen weighs over 467 carats. It was mined in the Merelani Hills of Tanzania (Block "D"). This beautiful, large tanzanite specimen is mostly translucent to semi-transparent. A good portion of this large crystal is gem quality,great as a specimen, or for carving or cabbing. This is a stand alone specimen, but due to its height should be supported. The lower shoulder of its termination is capped with a thin layer of silvery black graphite, offering a nice contrast. See also another view photo See also an edge view photo See also another view photo

Item: tanm175
143.9 carats (28.8 grams)
1.2" long x 0.6"x 0.5"
Mined in TanzaniaPrice:$230.40
This natural tanzanite specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated, blocky tanzanite crystal section with translucent to semi-transparent areas and a very small amount of graphite matrix on one face. This speciman has been gently heated to atain this nice blue color. See also a another view photo.

Item: tanm177
14.18 carats
22mm long x10mm x 7mm
Mined in TanzaniaPrice:$180.00
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This unheated, partialy included tanzanite crystal would be considered cuttable, with a good sized clean area. The prismatic faces and are some what striated but the termination is in good condition. We would suggest heat treating this speciman. See also side view photo.

Item: tanm178
13.5 carats (2.7 grams)
24mm long x12mm x 7mm
Mined in TanzaniaPrice:$210.00
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. It is mostly transparent with gem-grade areas. The prismatic faces and the terminations show vitrous luster and are in good condition overall with two sides showing striations. This natural tanzanite crystal has a mostly blue color under flourescent light and a blueish purple with transmitted light. See also a side-view photo with transmitted light.

Item: tanm179
16.1 carats
25mm long x 13mm x 7mm
Mined in TanzaniaPrice:$180.00
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This mostly transparent lightly included tanzanite crystal would best be used as a specimen. The faces and the terminations are in good condition with good luster with the exception of a broken tip on an outer termination . The faces are partialy striated as well. The color is a medium tone of purplish blue.

Item: tanm190
3.98 carats
17mm long x7.2mm x 5.4mm
Mined in TanzaniaPrice:$79.60
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This unheated, lightly included tanzanite crystal would be considered cuttable, with a good sized clean area. The intergrown side by side crystals are some what striated but the terminations are in good condition. This specimen is heat treatable but has a unique bi-color look as is. See also another view of this genuine tanzanite crystal.

Item: tanm191
4.26 carats
14.7mm long x6.0mm x 5.2mm
Mined in TanzaniaPrice:$85.20
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This unheated, lightly included tanzanite crystal would be considered cuttable, with a good sized clean area. It is a single crystal with mostly nice faces and termination. This specimen is heat treatable but has a unique bi-color look as is, with a slightly blueish base and transparent greenish yellow termination. See also another view of this genuine tanzanite crystal.

Item: tanm192
6.24 carats
19.5mm long x8.5mm x 7.3mm
Mined in TanzaniaPrice:$74.80
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This unheated, partialy included tanzanite crystal could be considered cuttable, with a some small clean areas. The prismatic faces are some what abraided and the termination is not in good condition. This speciman is bi-colored, (greenish-yellow and blue),how ever we would suggest heat treating it. See also a side-view of this genuine tanzanite crystal.

Item: tanm193
3.98 carats
16.0mm long x10..0mm x 7.0mm
Mined in TanzaniaPrice:$101.40
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This unheated, lightly included tanzanite crystal would be considered cuttable, with a good sized clean area. The intergrown side by side crystals are some what striated but the terminations are in good condition. This specimen is heat treatable. It has a pale brownish greenish yellow look as is. See also a side-view of this genuine tanzanite crystal. See also another view of this genuine tanzanite crystal.

Item: tanm194
4.98 carats
12.3mm long x 8.6mm x 6.2mm
Mined in TanzaniaPrice:$44.80
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. It is mostly transparent but moderately included. The prismatic faces and the terminations show vitrous luster and are in only fair condition with the chisel like termination being chipped part way down one face. This tanzanite crystal has a mostly blue color under flourescent light and a blueish purple with transmitted light. See also another view of this genuine tanzanite crystal.

Our Tanzanite Mineral Specimens and Tanzanite Crystals were mined in the Merelani Hills of Tanzania.

Tanzanite is a trichroic gem variety of the mineral zoisite, with different colors along each of its three crystallographic directions. We have a selection of unusual genuine tanzanite gems & tanzanite jewelry items showing blue, violet, and green trichroism.

Select any link below to see superior quality tanzanite jewelry designs in solid 14k gold and in pure sterling silver.